US 12,404,834 B2
Configurable multi-purpose cross-flow wind turbine with performance enhancements
Jon Paden, Austin, TX (US); and Paul Severin, Austin, TX (US)
Assigned to VELOCITY WIND TURBINES LLC, Austin, TX (US)
Filed by Velocity Wind Turbines LLC, Austin, TX (US)
Filed on Jan. 24, 2024, as Appl. No. 18/421,392.
Application 18/421,392 is a continuation of application No. 17/397,538, filed on Aug. 9, 2021, granted, now 11,885,295.
Prior Publication US 2024/0200529 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F03D 1/06 (2006.01); F03D 9/25 (2016.01)
CPC F03D 1/0675 (2013.01) [F03D 9/25 (2016.05); F05B 2240/21 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wind power turbine comprising:
a plurality of primary blades disposed at regular intervals around an axle;
a plurality of secondary blades disposed around the axle such that each secondary blade is interposed between a pair of successive adjacent primary blades of the plurality of primary blades, each secondary blade of the plurality of secondary blades sized smaller than each primary blade of the plurality of primary blades, each secondary blade of the plurality of secondary blades positioned and oriented to provide a wind shielding effect on an adjacent following primary blade of the plurality of primary blades; and
a plurality of tertiary blades disposed around the axle, each tertiary blade interposed between a concave side of an immediately preceding adjacent primary blade of the plurality of primary blades and a convex side of an immediately following adjacent secondary blade of the plurality of secondary blades, each tertiary blade of the plurality of tertiary blades sized smaller than each secondary blade of the plurality of secondary blades, wherein the primary blades and the secondary blades alternate contributions to torque transmitted to the axle through redirection of a cross-flow wind simultaneously exerting a positive wind pressure to convex surfaces of individual blades of said primary and secondary pluralities of blades returning back into the wind during rotation, and to concave surfaces of individual blades of said primary and secondary pluralities of blades heading away from the wind during rotation.